The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1992
Filed:
Jan. 08, 1990
Applicant:
Inventors:
David O Ham, Lexington, MA (US);
Gary A Moniz, Windham, NH (US);
Melanie J Gouveia, North Reading, MA (US);
Assignee:
Physical Sciences, Inc., Andover, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
429235 ;
Abstract
A method for removing NO.sub.x, particularly nitrogen oxide, emissions from the exhaust products of combustion processes is disclosed. An alkyl amine is added to the stream of exhaust products at relatively low temperatures in the range of 350.degree.-650.degree. C. The alkyl amine does not require a catalyst to react with the nitrogen oxides at these temperatures. Monomethyl amine (CH.sub.3 NH.sub.2) is particularly useful.